Our precision ball bearings refer to precision deep groove ball bearings. The adjustable clearance, mounting tolerances and material superiority of such bearings can be adapted to many high-precision applications, including medical devices, machine tools, robotics and other industries. We can provide high-precision deep groove ball bearings with inner diameters less than 100mm, tolerance class ABEC-7 (P4), and noise vibration level Z4V4. This type of ball bearing is generally used in precision equipment such as engines, motors, CNC machine tools. We can provide customers standard high-precision ball bearings, including metric and inch series, as well as a one-stop sales service.